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प्रश्न
Which has the higher frequency - ultrasonic sound or infrasonic sound?
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उत्तर
Ultrasonic sound has higher frequency than infrasonic sound.
संबंधित प्रश्न
The sketches I to IV in following Figure show sound waves, all formed in the same time interval.
 |
 |
| I | II |
 |
 |
| III | IV |
Which diagram shows
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